. The Canadian entomologist. Insects; Entomology. 194 THE CANADIAN One specimen, bred from a long whitish serpentine mine on the stem of dogbane (Apocynum cannabium L.). The larva leaves the mine to pupate, and spins the characteristic white cocoon ornamented with pearly globules. Mine collected near Cincinnati, July 3, at which time the larva was nearly full grown. Imago, July 21. This species comes very close to Marmara salicteUa Clem., from which it may be distinguished by the yellow head, more oblique median fascia and smaller size. Cystioecetes, new genus. Head with appress
. The Canadian entomologist. Insects; Entomology. 194 THE CANADIAN One specimen, bred from a long whitish serpentine mine on the stem of dogbane (Apocynum cannabium L.). The larva leaves the mine to pupate, and spins the characteristic white cocoon ornamented with pearly globules. Mine collected near Cincinnati, July 3, at which time the larva was nearly full grown. Imago, July 21. This species comes very close to Marmara salicteUa Clem., from which it may be distinguished by the yellow head, more oblique median fascia and smaller size. Cystioecetes, new genus. Head with appressed scales; ocelli present; tongue de\eloped. Antennae 7^3, outer half very shortly bipectinate and ciliate in both sexes, basal seg- ent rather long, without pecten. Labial palpi long, recurved, second segment thickened with scales, terminal segment shorter, thickened with scales, apex a CvU t e . Maxillary palpi \er\- short, appressed to tongue. Posterior tibiae rough-haired above on the posterior half. Fore wings with large tufts of raised scales; lb furcate, 2 from three-fourths of cell, tubular onh- near the margin, 4 from angle, 6 out of base of stalk of 7 + 8, 11 from middle of cell. Hind wings 2/5, narrow lanceolate, cilia 5; 2 - 4 nearly parallel, 4 and 5 connate, 5 and 6 parallel, 6 and 7 approximated at base. (Fig. 21). Type: Cystioecetes nimbosus. This genus is closely related to Chrysopeleia Cham., which it \'ery closely resembles in type of markings; the antennal and palpal characters are identical. In Chrysopeleia vein 2 of the fore wings is absent, and 6 is' out of 7 beyond 8; the venation of the hind wings differs only in the stalking of 6 and 7. It appears to bear some resemblance to some Australian genera in antennal structure and in neuration of the hind wings. Fig. 21.—\'enition of Cystioecetes Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance o
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